She is just a strong and powerful even tougher than Sarah Bellington, a full dragoness who no one can take her on and lives.
The biggest and strongest males in the city want a "piece" of her thinking even believing that she is the perfect mate to their frame. Unfortunately for them, she's already taken...
... by this guy.
No one knows what Sera sees in Xenny but its more than enough to make a healthy relationship between the both of them. Regardless of size and mass differences.